use async_std::{io::ReadExt, os::unix::net::UnixStream};
use i3ipc_types::{decode_event, event, MAGIC};
use std::io;
pub struct EventStream {
inner: UnixStream,
}
impl EventStream {
pub fn new(inner: UnixStream) -> Self {
Self { inner }
}
pub async fn next(&mut self) -> io::Result<event::Event> {
let mut init = [0_u8; 14];
self.inner.read_exact(&mut init).await?;
assert!(&init[0..6] == MAGIC.as_bytes(), "Magic str not received");
let payload_len = u32::from_ne_bytes([init[6], init[7], init[8], init[9]]) as usize;
let msg_type = u32::from_ne_bytes([init[10], init[11], init[12], init[13]]);
let mut payload = vec![0_u8; payload_len];
self.inner.read_exact(&mut payload).await?;
decode_event(msg_type, payload)
}
}